Read the errormessage. It says you violate a unique constraint.
On your AER_AE_CHAR table you have a unique constraint, but you try to update or insert a row, such that you create a duplicate value.
Check what the constraint looks like (which columns are involved) and then check your code.

Hi,
thanks for the reply. in my table AER_ID and SEQ_AE_CHAR are the unique constraints. but when i was not using the update statement the procedure was working fine. but after using the update satement its giving error like this.